Support sleeve jig and guide sleeve unit of precision automatic lathe

Abstract

The utility model discloses a support sleeve jig and a guide sleeve unit of a precision automatic lathe. The jig comprises a supporting assembly, a guide sleeve taper sleeve and a guide sleeve. The conical end of the guide sleeve taper sleeve is connected with the guide sleeve in a sleeved mode, the other end of the guide sleeve taper sleeve is connected with the supporting assembly in a sleeved mode, and the supporting assembly is detachably connected with the guide sleeve. The supporting assembly is provided with a through hole for a to-be-machined raw material to penetrate through, and the inner diameter of the through hole meets the requirement that the through hole is in clearance fit with the to-be-machined raw material. According to the jig and the guide sleeve unit, the guide sleeve is in clearance fit with the main side clamping jaw, the through hole formed in the supporting assembly is in clearance fit with the raw material, it is guaranteed that the raw material passes through smoothly, the supporting effect can be achieved, bending deformation of the raw material to be machined in the machining process is prevented, and the problems of raw material waste, equipment failures, equipment damage and the like are avoided; and the equipment maintenance cost is effectively reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a heart machine guide sleeve unit technical field, especially in a kind of heart machine support sleeve fixture and guide sleeve unit. BACKGROUND

[0002] Heart machine guide sleeve is a key component of heart machine, it is mainly used to support and guide raw material, ensure that raw material can be accurately conveyed to processing position in processing process. When heart machine tool processes raw material, especially when processing small diameter raw material, raw material diameter is small, rigidity is poor, the distance between the farthest end of clamp jaw and guide sleeve is long, there is no support between guide sleeve and clamp jaw, tool is cut in guide sleeve end, will be subjected to greater resistance, will lead to raw material spiral bending deformation, raw material cannot pass through guide sleeve, leading to material waste, and equipment failure and spare parts damage, and for the processing of small diameter raw material, equipment failure will greatly reduce production efficiency and improve the maintenance cost of equipment and spare parts. SUMMARY

[0003] In view of the above problem, the utility model is provided to overcome the above problem or at least partially solve the above problem.

[0004] In the first aspect, the utility model embodiment provides a kind of heart machine support sleeve fixture, comprising:

[0005] Supporting assembly, guide sleeve cone sleeve and guide sleeve;Wherein:

[0006] The tapered end of the guide sleeve cone sleeve is connected with the guide sleeve, and the other end is connected with the supporting assembly, and the supporting assembly is detachably connected with the guide sleeve;

[0007] The supporting assembly is provided with a through hole for the raw material to be processed to pass through, and the inner diameter of the through hole satisfies the clearance fit with the raw material to be processed.

[0008] In one embodiment, the above-mentioned heart machine support sleeve fixture, the supporting assembly includes: support sleeve and guide sleeve adjusting nut;

[0009] The through hole is provided on the support sleeve;The support sleeve is detachably arranged in the guide sleeve adjusting nut.

[0010] In one embodiment, the above-mentioned heart machine support sleeve fixture, the support sleeve and the guide sleeve adjusting nut are interference fit.

[0011] In one embodiment, the above-mentioned heart machine support sleeve fixture, the front end of the support sleeve has a radially protruding step.

[0012] The guide sleeve adjusting nut has a stepped hole inside;

[0013] The stepped hole includes a first hole and a second hole; the diameter of the first hole is smaller than the diameter of the second hole;

[0014] The inner wall of the second hole has threads in a certain area;

[0015] The end of the guide sleeve facing the guide sleeve adjusting nut is threadedly connected to the second hole of the guide sleeve adjusting nut;

[0016] The support sleeve is embedded in the first hole, and the protruding step engages with the unthreaded area on the inner wall of the second hole.

[0017] In one embodiment, the aforementioned Swiss-type machine support sleeve fixture further includes a radially protruding step on the outer wall of the guide sleeve adjusting nut, so as to limit the guide sleeve tapered sleeve when the guide sleeve adjusting nut is fitted onto the guide sleeve tapered sleeve.

[0018] In one embodiment, the aforementioned Swiss-type lathe support sleeve fixture has multiple positioning holes on the end of the guide sleeve adjusting nut away from the guide sleeve tapered sleeve.

[0019] In one embodiment, the above-mentioned Swiss-type lathe support sleeve fixture has a plurality of drainage grooves formed on the outer wall of the support sleeve along the axial direction.

[0020] In one embodiment, the clearance between the inner diameter of the through hole in the support sleeve and the raw material to be processed in the above-mentioned Swiss-type lathe support sleeve fixture is 0.2 to 0.5 mm.

[0021] In one embodiment, the support sleeve of the aforementioned Swiss-type lathe support fixture is made of polyoxymethylene.

[0022] Secondly, this utility model embodiment provides a guide sleeve unit for a Swiss-type lathe, comprising:

[0023] Mounting base and Swiss-type lathe support sleeve fixture as described above;

[0024] The outer wall of the guide sleeve tapered sleeve has threads;

[0025] The Swiss-type lathe support sleeve fixture is connected to the mounting base via the thread.

[0026] The beneficial effects of the above-mentioned technical solutions provided by the embodiments of this utility model include at least the following:

[0027] The Swiss-type lathe support sleeve fixture provided in this embodiment of the utility model has a clearance fit between the guide sleeve and the main side jaw, and between the through hole of the support component and the raw material. This ensures that the raw material can pass through smoothly and also provides support, preventing the bending and deformation of the raw material to be processed during processing. This avoids problems such as waste of raw materials, equipment failure and equipment damage, and effectively reduces equipment maintenance costs.

[0028] Furthermore, the support sleeve is detachably disposed within the guide sleeve adjusting nut. This structural design allows for the processing of raw materials of different diameters by replacing support sleeves with different inner diameters, and also facilitates replacement and maintenance, extending the service life of the entire fixture.

[0029] Furthermore, the support sleeve is also designed with a drainage groove in the axial direction. The cutting fluid can be discharged through the drainage groove to remove debris and sludge from the guide sleeve, effectively extending the service life of the guide sleeve.

[0030] Furthermore, the support sleeve and the guide sleeve adjusting nut adopt an interference fit, and the step positioning of the support sleeve can realize the rotation direction of the support sleeve and the axial positioning. This connection method effectively avoids scratching the raw materials and accurately and stably supports the raw materials.

[0031] Furthermore, the support sleeve is made of polyoxymethylene, which is easy to process, low in cost, lightweight, and does not easily scratch the surface of raw materials. It is also simple and convenient to disassemble and install.

[0032] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention may be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings.

[0033] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0034] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0035] Figure 1 This is a schematic diagram of the Swiss-type lathe support sleeve fixture structure in an embodiment of this utility model;

[0036] Figure 2 This is a schematic diagram of the support sleeve structure in an embodiment of the present utility model;

[0037] Figure 3 This is a partially enlarged structural diagram of the guide sleeve adjusting nut in an embodiment of this utility model;

[0038] Explanation of reference numerals in the attached figures:

[0039] 1-Cutting tool; 2-Guide sleeve; 3-Guide sleeve taper sleeve; 4-Raw material; 5-Support sleeve; 6-Guide sleeve adjusting nut; 7-Main side gripper. Detailed Implementation

[0040] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0041] In existing technologies, when Swiss-type lathes process small-diameter raw materials, especially slender round bars with a diameter of less than 4mm, the small diameter and poor rigidity of these raw materials, along with the long distance between the farthest end of the grippers and the guide sleeve (typically 220mm), cause significant resistance when the cutting tool is cutting at the guide sleeve end and the spindle is feeding the raw material along the Z-axis. These factors often lead to spiral bending and deformation of the raw material, resulting in a low yield. Furthermore, because the raw material cannot pass through the guide sleeve, the surface of the grippers may be damaged due to impact. In addition, the high frequency of failures and the high cost of replacing spare parts further exacerbate the problem.

[0042] To address the aforementioned problems, this utility model provides a support sleeve fixture for a Swiss-type lathe, as described above. Figure 1 As shown, the Swiss-type machine support sleeve fixture includes: a support assembly, a guide sleeve cone 3, and a guide sleeve 2; wherein:

[0043] The tapered end of the guide sleeve 3 is sleeved with the guide sleeve 2, and the other end is sleeved with the support assembly, and the support assembly is detachably connected to the guide sleeve 2;

[0044] The aforementioned support assembly has a through hole for the raw material 4 to be processed to pass through, and the inner diameter of the through hole satisfies the clearance fit between it and the raw material 4 to be processed.

[0045] The aforementioned clearance fit allows the raw material 4 to pass through the through hole while also supporting it. The Swiss-type lathe support sleeve fixture provided in this embodiment supports the raw material 4 between the guide sleeve 2 and the main side gripper 7, preventing bending and deformation of the raw material 4 during processing, avoiding waste of the raw material 4, equipment malfunctions, and equipment damage, and effectively reducing equipment maintenance costs.

[0046] In one embodiment, the clearance between the inner diameter of the through hole in the support sleeve 5 and the raw material 4 to be processed is 0.2 to 0.5 mm.

[0047] The gap between the through hole of the support component and the raw material 4 is 0.2 to 0.5 mm, which ensures that the raw material 4 can pass through smoothly and also provides support. It can also provide good support and protection for raw materials 4 with a processing diameter of 2 to 4 mm.

[0048] In one embodiment, the support assembly includes: a support sleeve 5 and a guide sleeve adjusting nut 6; wherein:

[0049] Reference Figure 2 As shown, the aforementioned through hole is formed on the support sleeve 5; the support sleeve 5 is detachably disposed within the guide sleeve adjusting nut 6. This structural method allows for the processing of raw materials 4 of different diameters by replacing support sleeves 5 with different inner diameters. Therefore, the Swiss-type lathe support sleeve fixture provided in this embodiment of the invention can meet the diverse needs of processing raw materials of different diameters by replacing support sleeves with different inner diameters, and is convenient for replacement and maintenance, extending the service life of the entire fixture.

[0050] In one embodiment, the support sleeve 5 and the guide sleeve adjusting nut 6 are interference fits.

[0051] In one embodiment, the front end of the aforementioned support sleeve 5 has a radially protruding step, as shown in the reference. Figure 2 As shown; the guide sleeve adjusting nut 6 has a stepped hole; the stepped hole includes a first hole and a second hole; the diameter of the first hole is smaller than the diameter of the second hole; a portion of the inner wall of the second hole has threads; see reference. Figure 3 As shown in the enlarged view of the guide sleeve adjusting nut 6 at position A, the smaller inner diameter on the left is the first hole, and the larger inner diameter on the right is the second hole.

[0052] The end of the guide sleeve 2 facing the guide sleeve adjusting nut 6 is threadedly connected to the second hole of the guide sleeve adjusting nut 6;

[0053] The support sleeve 5 is embedded in the first hole, and the protruding step is engaged with the unthreaded area of ​​the inner wall of the second hole.

[0054] In one embodiment, the outer wall of the guide sleeve adjusting nut 6 is further provided with a radially protruding step so that the guide sleeve tapered sleeve 3 is limited when the guide sleeve adjusting nut 6 is fitted onto the guide sleeve tapered sleeve 3.

[0055] The aforementioned support sleeve and guide sleeve adjusting nut adopt an interference fit. At the same time, the stepped positioning of the support sleeve can realize the rotation direction of the support sleeve and the axial positioning. This connection method effectively avoids scratching the raw materials and accurately and stably supports the raw materials.

[0056] In one embodiment, the guide sleeve adjusting nut 6 has multiple positioning holes at its end away from the guide sleeve tapered sleeve 3. By using a tool to rotate the guide sleeve adjusting nut 6 through these positioning holes, the degree of thread connection between the guide sleeve adjusting nut 6 and the guide sleeve 2 is adjusted, thereby installing and removing the guide sleeve 2.

[0057] In one embodiment, the outer wall of the support sleeve 5 is provided with a plurality of drainage grooves along the axial direction, as shown in the figure. Figure 2 As shown, in specific implementation, the support sleeve 5 has a drainage groove that is interference-fitted with the guide sleeve adjusting nut 6.

[0058] The guide sleeve 2 has a groove at its machining end. When the tool 1 is machining at the machining end of the guide sleeve 2, the cutting fluid will lubricate and cool the machining area. During machining, debris will be generated and will enter the guide sleeve 2 through the groove at the machining end. The debris will accumulate over a long period of time, causing the raw material 4 to encounter resistance when passing through the guide sleeve 2. The cutting fluid will flow into the groove at the machining end of the guide sleeve 2 and flow out through the drainage groove of the support sleeve 5, carrying away the debris and sludge, which can effectively extend the service life of the guide sleeve 2.

[0059] In one embodiment, the support sleeve 5 may be made of, for example, polyoxymethylene (POM). Using POM offers advantages such as ease of processing, low cost, light weight, minimal risk of scratching the surface of the raw material 4, and simple and convenient disassembly and installation.

[0060] Furthermore, the support sleeve 5 and the guide sleeve adjusting nut 6 adopt an interference fit. At the same time, the step positioning of the support sleeve 5 can realize the rotation direction of the support sleeve 5 and the axial positioning. This connection method effectively avoids scratching the raw material 4 and stably supports the raw material 4, preventing the raw material 4 from spiral bending and deforming during processing, so as to ensure the processing accuracy.

[0061] This utility model embodiment also provides a guide sleeve unit for a Swiss-type lathe, including: a mounting base and a Swiss-type lathe support sleeve fixture as described above; the outer wall of the guide sleeve cone sleeve 3 has threads; the Swiss-type lathe support sleeve fixture is connected to the mounting base through the threads.

[0062] The following is a brief explanation of the process of processing raw materials using the Swiss-type lathe support sleeve fixture:

[0063] Reference Figure 1As shown, the guide sleeve adjusting nut 6 is located between the main side jaw 7 and the guide sleeve 2, and the support sleeve 5 is located inside the guide sleeve adjusting nut 6. During processing, one end of the raw material 4 to be processed is clamped in the main side jaw 7. The main side jaw clamps and drives the raw material 4 to be processed to be fed towards the tool 1. The tool 1 processes the other end of the raw material 4. The support sleeve 5 supports the raw material 4 to prevent the resistance between the tool 1 and the raw material 4 from being too great due to the excessive distance between the main side jaw 7 and the tool 1 during processing, especially for raw materials 4 with a diameter of 4mm or less, from bending and deforming between the main side jaw and the guide sleeve 2, thereby avoiding failure and improving the processing efficiency of the Swiss-type lathe.

[0064] Before processing, the installation process is as follows: First, remove the guide sleeve 2. Then, gently hammer the support sleeve 5 into the guide sleeve adjusting nut 6 from the side of the guide sleeve 2. Next, put the guide sleeve tapered sleeve 3 onto the threaded end of the guide sleeve adjusting nut 6. Finally, thread the guide sleeve 2 and the guide sleeve adjusting nut 6 together.

[0065] Disassembly process after processing: Remove guide sleeve 2, and gently tap out support sleeve 5 from the end of guide sleeve tapered sleeve 3 away from the guide sleeve adjusting nut 6.

[0066] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A support sleeve fixture for a Swiss-type lathe, characterized in that, include: Support components, guide sleeve tapered sleeve, and guide sleeve; wherein: The tapered end of the guide sleeve is sleeved with the guide sleeve, and the other end is sleeved with the support assembly, and the support assembly is detachably connected to the guide sleeve; The support component has a through hole for the raw material to be processed to pass through, and the inner diameter of the through hole is clearance fit with the raw material to be processed.

2. The Swiss-type lathe support sleeve fixture as described in claim 1, characterized in that, The support assembly includes: a support sleeve and a guide sleeve adjusting nut; The through hole is formed on the support sleeve; the support sleeve is detachably disposed inside the guide sleeve adjusting nut.

3. The Swiss-type lathe support sleeve fixture as described in claim 2, characterized in that, The support sleeve and the guide sleeve adjusting nut are interference fit.

4. The Swiss-type lathe support sleeve fixture as described in claim 3, characterized in that, The front end of the support sleeve has a radially protruding step; The guide sleeve adjusting nut has a stepped hole inside; The stepped hole includes a first hole and a second hole; the diameter of the first hole is smaller than the diameter of the second hole; The inner wall of the second hole has threads in a certain area; The end of the guide sleeve facing the guide sleeve adjusting nut is threadedly connected to the second hole of the guide sleeve adjusting nut; The support sleeve is embedded in the first hole, and the protruding step engages with the unthreaded area on the inner wall of the second hole.

5. The Swiss-type lathe support sleeve fixture as described in claim 2, characterized in that, The outer wall of the guide sleeve adjusting nut is also provided with a radially protruding step so that the guide sleeve tapered sleeve is limited when the guide sleeve adjusting nut is fitted onto the guide sleeve tapered sleeve.

6. The Swiss-type lathe support sleeve fixture as described in claim 2, characterized in that, The guide sleeve adjusting nut has multiple positioning holes at the end away from the guide sleeve tapered sleeve.

7. The Swiss-type lathe support sleeve fixture as described in any one of claims 2-6, characterized in that, The outer wall of the support sleeve is provided with multiple drainage grooves along the axial direction.

8. The Swiss-type lathe support sleeve fixture as described in any one of claims 2-6, characterized in that, The clearance between the inner diameter of the through hole in the support sleeve and the raw material to be processed is 0.2 to 0.5 mm.

9. The Swiss-type lathe support sleeve fixture as described in any one of claims 2-6, characterized in that, The support sleeve is made of polyoxymethylene.

10. A guide sleeve unit for a Swiss Army machine, characterized in that, include: Mounting base and Swiss-type lathe support sleeve fixture as described in any one of claims 1-9; The outer wall of the guide sleeve tapered sleeve has threads; The Swiss-type lathe support sleeve fixture is connected to the mounting base via the thread.

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